[PATCH] initramfs: Provide a common initrd reserve function

[kernel test robot]

Hi Kefeng,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.11-rc3 next-20210113]
[cannot apply to soc/for-next arm/for-next linux/master]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Kefeng-Wang/initramfs-Provide-a-common-initrd-reserve-function/20210113-224338
base:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git e609571b5ffa3528bf85292de1ceaddac342bc1c
config: i386-tinyconfig (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/1336e01e9195f537da5a004080c0cf9f265678d7
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Kefeng-Wang/initramfs-Provide-a-common-initrd-reserve-function/20210113-224338
        git checkout 1336e01e9195f537da5a004080c0cf9f265678d7
        # save the attached .config to linux build tree
        make W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>

All errors (new ones prefixed by >>):

   In file included from arch/x86/include/asm/microcode.h:7,
                    from arch/x86/mm/init.c:22:
>> include/linux/initrd.h:21:27: error: redefinition of 'reserve_initrd_mem'
      21 | static inline void __init reserve_initrd_mem(void) {}
         |                           ^~~~~~~~~~~~~~~~~~
   In file included from arch/x86/mm/init.c:2:
   include/linux/initrd.h:21:27: note: previous definition of 'reserve_initrd_mem' was here
      21 | static inline void __init reserve_initrd_mem(void) {}
         |                           ^~~~~~~~~~~~~~~~~~


vim +/reserve_initrd_mem +21 include/linux/initrd.h

    17	
    18	#ifdef CONFIG_BLK_DEV_INITRD
    19	extern void __init reserve_initrd_mem(void);
    20	#else
  > 21	static inline void __init reserve_initrd_mem(void) {}
    22	#endif
    23	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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